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| author | Dave Airlie <airlied@gmail.com> | 2015-11-07 10:16:59 +0300 |
|---|---|---|
| committer | Dave Airlie <airlied@gmail.com> | 2015-11-07 10:16:59 +0300 |
| commit | 816d2206f0f9953ca854e4ff1a2749a5cbd62715 (patch) | |
| tree | 26b8a56c4656a8794911c31246061bfe05d9cd9b /drivers/gpu/drm/i915/intel_uncore.c | |
| parent | d0baf9218cacd9dd606c75f9961f94172b16de12 (diff) | |
| parent | 1b0e3a049efe471c399674fd954500ce97438d30 (diff) | |
| download | linux-816d2206f0f9953ca854e4ff1a2749a5cbd62715.tar.xz | |
Merge tag 'drm-intel-next-fixes-2015-11-06' of git://anongit.freedesktop.org/drm-intel into drm-next
Here's a handful of i915 fixes for drm-next/v4.4. Imre's commit alone
should address the remaining warnings galore you experienced on
Skylake. Almost all of the rest are also fixes against user or QA
reported bugs, with references.
* tag 'drm-intel-next-fixes-2015-11-06' of git://anongit.freedesktop.org/drm-intel:
drm/i915/skl: disable display side power well support for now
drm/i915: Extend DSL readout fix to BDW and SKL.
drm/i915: Do graphics device reset under forcewake
drm/i915: Skip fence installation for objects with rotated views (v4)
drm/i915: add quirk to enable backlight on Dell Chromebook 11 (2015)
drm/i915/skl: Prevent unclaimed register writes on skylake.
drm/i915: disable CPU PWM also on LPT/SPT backlight disable
drm/i915: Fix maxfifo watermark calc on vlv cursor planes
drm/i915: add hotplug activation period to hotplug update mask
Diffstat (limited to 'drivers/gpu/drm/i915/intel_uncore.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_uncore.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index 1663ea55e37c..43cba129a0c0 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -1531,13 +1531,22 @@ static int (*intel_get_gpu_reset(struct drm_device *dev))(struct drm_device *) int intel_gpu_reset(struct drm_device *dev) { + struct drm_i915_private *dev_priv = to_i915(dev); int (*reset)(struct drm_device *); + int ret; reset = intel_get_gpu_reset(dev); if (reset == NULL) return -ENODEV; - return reset(dev); + /* If the power well sleeps during the reset, the reset + * request may be dropped and never completes (causing -EIO). + */ + intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL); + ret = reset(dev); + intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); + + return ret; } bool intel_has_gpu_reset(struct drm_device *dev) |